High Quality Content by WIKIPEDIA articles! Sales promotion is one of the four aspects of promotional mix. (The other three parts of the promotional mix are advertising, personal selling, and publicity/public relations.) Media and non-media marketing communication are employed for a pre-determined, limited time to increase consumer demand, stimulate market demand or improve product availability. Examples include contests, coupons, freebies, loss leaders, point of purchase displays, premiums, prizes, product samples, and rebates